<!doctype html>
<html>
<head>
    <meta charset="utf-8">
    <title>Bar3D Simplex Noise - ECHARTS-GL</title>
    <meta name="viewport" content="width=device-width, initial-scale=1, user-scalable=no">
    <meta name="apple-mobile-web-app-capable" content="yes"> <!-- Fullscreen Landscape on iOS -->
    <link rel="stylesheet" href="./common.css">
</head>
<body>
<div id="main"></div>
<script src="../node_modules/echarts/dist/echarts.js"></script>
<script src="../dist/echarts-gl.js"></script>
<script src="lib/jquery.min.js"></script>
<script src="lib/simplex.js"></script>
<script src="js/exportGL2PLY.js"></script>
<script src="lib/download.js"></script>
<script>
    var chart = echarts.init(document.getElementById('main'));

    var noise = new SimplexNoise(Math.random);
    var xData = [];
    var yData = [];

    function generateData(theta) {
        var data = [];
        for (var i = 0; i <= 2; i++) {
            for (var j = 0; j <= 2; j++) {
                var value = noise.noise2D(i / 2, j / 2);
                valMax = Math.max(valMax, value);
                valMin = Math.min(valMin, value);
                data.push([i, j, value * 2 + 4]);
            }
        }
        return data;
    }

    var valMin = Infinity;
    var valMax = -Infinity;
    var data = generateData(2, -5, 5);

    chart.setOption({
        toolbox: {
            feature: {
                myExportObj: {
                    title: 'Export OBJ',
                    icon: 'M4.7,22.9L29.3,45.5L54.7,23.4M4.6,43.6L4.6,58L53.8,58L53.8,43.6M29.2,45.1L29.2,0',
                    onclick: function () {
                        var res = echarts.exportGL2PLY(chart, {
                            mainType: 'grid3D',
                            index: 0
                        });
                        download(res, 'bar3D.ply', 'text/plain');
                    }
                }
            }
        },
        visualMap: {
            show: false,
            min: 2,
            max: 6,
            inRange: {
                color: ['#313695', '#4575b4', '#74add1', '#abd9e9', '#e0f3f8', '#ffffbf', '#fee090', '#fdae61', '#f46d43', '#d73027', '#a50026']
            }
        },
        xAxis3D: {
            type: 'value'
        },
        yAxis3D: {
            type: 'value'
        },
        zAxis3D: {
            type: 'value',
            max: 10,
            min: 0
        },
        grid3D: {
            show: false,
            postEffect: {
                enable: true,
                screenSpaceAmbientOcclusion: {
                    enable: true,
                    radius: 2,
                    intensity: 2.0,
                    quality: 'medium'
                },
                edge: {
                    enable: true
                }
            },
            axisLine: {},
            axisPointer: {},
            viewControl: {
                // autoRotate: true
            },
            light: {
                main: {
                    shadow: true,
                    intensity: 1
                },
                ambient: {
                    intensity: 0
                },
                ambientCubemap: {
                    texture: 'asset/canyon.hdr',
                    exposure: 2,
                    diffuseIntensity: 1
                }
            }
        },
        series: [{
            type: 'bar3D',
            data: data,
            shading: 'lambert',
            silent: true
        }]
    });

    window.onresize = chart.resize;
</script>
</body>
</html>
